Cylindrical roller bearings' rolling elements are cylindrical rollers, it is in line contact with the
bearing race, and mainly bear radial load. Rolling ring wall is with small friction, suitable for
high-speed rotation.

According to rows of rolling elements, cylindrical roller bearing can be divided into single row
bearing (NU, NJ, NUP, N, NF) and double row bearing (NNU, NN). The bearing's inner ring
and outer ring are separable. No inner or outer wall of the cylindrical roller bearings, the inner
and outer rings can be relative to the axial movement, so it can be used as the free end of the
bearing.

SL04 series double row full complement pulley bearing's inner ring is composed of two parts which are fixed by a lock ring, its outer ring has a shoulder in the middle to help axial positioning. The outer ring is narrower than inner ring, and has two snap ring grooves on the external surface. There are contact seals on both sides of bearing to provide good sealing effect, the sealing lip touches the outer ring raceway with small pressure to make sure the rotary flexibility. Bearing is filled with No.3 or No.2 EP lubricating grease, so it has good corrosion resistance and extreme pressure resistance.

This bearing can support some degree of tilting moment due to the big distance between two rows of rollers, and because of the characteristic that the end faces of inner ring and outer ring will not interfere each other during installation and working, this bearing is widely used in pulley.

Working temprature is -30~+110 degrees centigrade, and could be -40~+80 degrees centigrade with application of low temperature resistance grease. SL04 series bearing is maintainence free under common conditions, however, additional lubricating is necessary under moist or contaminated environment, or under moderate or high speed.

BRS-BEARINGS/SKF    INA
NNF 5030-2LSNVY    SL04 5030PPX
NNF 150-2LSNVY      SL04 150PPX
NNF 5032-2LSNVY    SL04 5032PPX
NNF 160-2LSNVY      SL04 160PPX
NNF 5034-2LSNVY    SL04 5034PPX
NNF 170-2LSNVY      SL04 170PPX
NNF 5036-2LSNVY    SL04 5036PPX
NNF 180-2LSNVY      SL04 180PPX
NNF 5038-2LSNVY    SL04 5038PPX
NNF 190-2LSNVY      SL04 190PPX
NNF 5040-2LSNVY    SL04 5040PPX
NNF 200-2LSNVY      SL04 200PPX
NNF 5044-2LSNVY    SL04 5044PPX
NNF 220-2LSNVY      SL04 220PPX
NNF 5048-2LSNVY    SL04 5048PPX
NNF 240-2LSNVY      SL04 240PPX
NNF 5052-2LSNVY    SL04 5052PPX
NNF 260-2LSNVY      SL04 260PPX
NNF 5056-2LSNVY    SL04 5056PPX
NNF 280-2LSNVY      SL04 280PPX